# Stainless

> Platform that generates and maintains high-quality SDKs from OpenAPI specs.

## Why it is interesting

Stainless automates SDK craftsmanship — increasingly important as API surfaces and AI tool-calling explode.

## Profile

- **Stage:** seed
- **Status:** private
- **Industries:** developer-tools, ai-ml
- **Coverage:** full
- **Last updated:** 2026-07-24

## Key facts

- Series A (Dec 2024): $25M led by a16z; Sequoia among participants (Stainless blog)
- Seed (2022): $3.5M led by Sequoia (FinSMEs)
- Co-investors not in VCT directory: Felicis, The General Partnership, MongoDB Ventures, Zapier

## Investors in our directory

- https://venturecapitaltracker.com/fund/andreessen-horowitz
- https://venturecapitaltracker.com/fund/sequoia

---
Source: https://venturecapitaltracker.com/startup/stainless